From patchwork Sat Dec 16 17:41:23 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Stefan Berger X-Patchwork-Id: 10117273 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id D2DD6603FA for ; Sat, 16 Dec 2017 17:43:54 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BC4B129442 for ; Sat, 16 Dec 2017 17:43:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B121029444; Sat, 16 Dec 2017 17:43:54 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 4CAEB29442 for ; Sat, 16 Dec 2017 17:43:54 +0000 (UTC) Received: from localhost ([::1]:51494 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eQGV7-0007GL-GC for patchwork-qemu-devel@patchwork.kernel.org; Sat, 16 Dec 2017 12:43:53 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45793) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eQGTW-0005qz-In for qemu-devel@nongnu.org; Sat, 16 Dec 2017 12:42:18 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eQGTU-0008FY-L2 for qemu-devel@nongnu.org; Sat, 16 Dec 2017 12:42:14 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:56580 helo=mx0a-001b2d01.pphosted.com) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eQGTU-0008Ex-GT for qemu-devel@nongnu.org; Sat, 16 Dec 2017 12:42:12 -0500 Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id vBGHddN6066420 for ; Sat, 16 Dec 2017 12:42:09 -0500 Received: from e36.co.us.ibm.com (e36.co.us.ibm.com [32.97.110.154]) by mx0b-001b2d01.pphosted.com with ESMTP id 2evxh66924-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Sat, 16 Dec 2017 12:42:08 -0500 Received: from localhost by e36.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Sat, 16 Dec 2017 10:42:05 -0700 Received: from b03ledav001.gho.boulder.ibm.com (b03ledav001.gho.boulder.ibm.com [9.17.130.232]) by b03cxnp07029.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id vBGHg5qo12190146; Sat, 16 Dec 2017 10:42:05 -0700 Received: from b03ledav001.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id DB3936E038; Sat, 16 Dec 2017 10:42:04 -0700 (MST) Received: from sbct-3.watson.ibm.com (unknown [9.47.158.153]) by b03ledav001.gho.boulder.ibm.com (Postfix) with ESMTP id 6F0D06E035; Sat, 16 Dec 2017 10:42:04 -0700 (MST) From: Stefan Berger To: qemu-devel@nongnu.org Date: Sat, 16 Dec 2017 12:41:23 -0500 X-Mailer: git-send-email 2.5.5 In-Reply-To: <1513446109-9013-1-git-send-email-stefanb@linux.vnet.ibm.com> References: <1513446109-9013-1-git-send-email-stefanb@linux.vnet.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 17121617-0020-0000-0000-00000D2CDBEC X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00008213; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000244; SDB=6.00961141; UDB=6.00486146; IPR=6.00741136; BA=6.00005744; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00018575; XFM=3.00000015; UTC=2017-12-16 17:42:06 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17121617-0021-0000-0000-00005F525800 Message-Id: <1513446109-9013-7-git-send-email-stefanb@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-12-16_11:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1712160265 X-MIME-Autoconverted: from 8bit to quoted-printable by mx0b-001b2d01.pphosted.com id vBGHddN6066420 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.158.5 Subject: [Qemu-devel] [PULL v1 06/32] tpm-be: report error instead of front-end X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, Stefan Berger , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Marc-André Lureau Backend can give more accurate error description, and lift out the job from the frontend. Signed-off-by: Marc-André Lureau Reviewed-by: Stefan Berger Signed-off-by: Stefan Berger --- backends/tpm.c | 3 ++- hw/tpm/tpm_tis.c | 4 +--- include/sysemu/tpm_backend.h | 3 ++- 3 files changed, 5 insertions(+), 5 deletions(-) diff --git a/backends/tpm.c b/backends/tpm.c index 58f823d..7b108bd 100644 --- a/backends/tpm.c +++ b/backends/tpm.c @@ -54,9 +54,10 @@ enum TpmType tpm_backend_get_type(TPMBackend *s) return k->type; } -int tpm_backend_init(TPMBackend *s, TPMIf *tpmif) +int tpm_backend_init(TPMBackend *s, TPMIf *tpmif, Error **errp) { if (s->tpmif) { + error_setg(errp, "TPM backend '%s' is already initialized", s->id); return -1; } diff --git a/hw/tpm/tpm_tis.c b/hw/tpm/tpm_tis.c index 95d3afc..bf291e6 100644 --- a/hw/tpm/tpm_tis.c +++ b/hw/tpm/tpm_tis.c @@ -1074,9 +1074,7 @@ static void tpm_tis_realizefn(DeviceState *dev, Error **errp) s->be_driver->fe_model = TPM_MODEL_TPM_TIS; - if (tpm_backend_init(s->be_driver, TPM_IF(s))) { - error_setg(errp, "tpm_tis: backend driver with id %s could not be " - "initialized", s->backend); + if (tpm_backend_init(s->be_driver, TPM_IF(s), errp)) { return; } diff --git a/include/sysemu/tpm_backend.h b/include/sysemu/tpm_backend.h index c5d1a68..df9ebd0 100644 --- a/include/sysemu/tpm_backend.h +++ b/include/sysemu/tpm_backend.h @@ -99,12 +99,13 @@ enum TpmType tpm_backend_get_type(TPMBackend *s); * @s: the backend to initialized * @tpmif: TPM interface * @datacb: callback for sending data to frontend + * @errp: a pointer to return the #Error object if an error occurs. * * Initialize the backend with the given variables. * * Returns 0 on success. */ -int tpm_backend_init(TPMBackend *s, TPMIf *tpmif); +int tpm_backend_init(TPMBackend *s, TPMIf *tpmif, Error **errp); /** * tpm_backend_startup_tpm: